Cupping Therapy Explained: What Those Circular Marks Actually Mean

Cupping therapy explained: what those circular marks actually mean. Discover the TCM science behind the suction cups, the bruise-like spots, and what they reveal about your health.

You've seen the photos—Olympic swimmers with strange purple circles on their backs, or a friend showing off mysterious round marks after a spa day. Maybe you're wondering: what is cupping therapy, and why would anyone voluntarily sign up for something that leaves what looks like a cluster of giant hickeys? If you're curious but skeptical, you're in exactly the right place. This article is general wellness education, not a substitute for professional medical care.

Cupping therapy (拔罐, bá guàn) is a traditional Chinese medicine technique where heated or suctioned cups are placed on the skin to create a local vacuum, which practitioners use to influence the flow of Qi (气) and Blood (血) in that area. The cups—traditionally made of glass, bamboo, or ceramic—are briefly exposed to heat or attached to a pump, then placed on the skin. As the air inside cools or is extracted, a vacuum forms, pulling the skin and superficial muscle layer upward into the cup. The result is a temporary circular mark, which is actually a controlled micro-bruise caused by blood being drawn to the surface. In TCM theory, this action is thought to "invigorate" the movement of Qi and Blood, clear what's called "stagnation" (郁, yù), and help release pathogens from the body's surface. It's one of the many tools used within the broader framework of the 9 TCM body constitution types, each of which may respond differently to this kind of treatment.

Cupping is ancient—really ancient. The earliest written records appear in the Mawangdui Silk Texts, medical manuscripts sealed in a tomb around 168 BCE, though the practice likely predates even those. The famous physician Ge Hong (葛洪) described using animal horns for suction in the 4th century, which is why one traditional name for cupping is "horn method" (角法, jiǎo fǎ).

The theory behind it rests on the TCM model of the body as a network of channels (经络, jīng luò) through which Qi and Blood flow. When that flow is blocked—by cold, dampness, injury, or emotional stress—the result is pain, stiffness, or a feeling of heaviness. Cupping is one way practitioners attempt to restore movement at a local level.

By the Tang dynasty (618–907 CE), cupping had become a formalized part of institutional medicine, taught in imperial medical schools. It spread along trade routes to the Middle East, Europe, and eventually the Americas. Today, cupping is used in hospitals in China alongside conventional care, and it has gained popularity in the West as a complementary therapy. The World Health Organization acknowledges traditional medicine systems like TCM as part of global healthcare, though it emphasizes the need for proper training and safety standards.

You don't have to be an Olympic athlete to encounter cupping. Here's where it pops up in ordinary Western life:

• The gym or sports clinic: A personal trainer or physiotherapist might suggest cupping for tight shoulders or low-back tension. Some professional sports teams keep a cupping practitioner on staff.
• The spa menu: High-end spas now offer "cupping facials" or "contour cupping," using smaller cups on the face or body for relaxation and what's marketed as improved circulation.
• The Instagram feed: Friends post post-session selfies with back marks, sparking curiosity (and sometimes concern) from family members.
• The wellness retreat: Cupping is often bundled with acupuncture, massage, and herbal consultations as part of a holistic weekend.
• The movie star interview: Celebrities frequently mention cupping in their wellness routines, which drives Google searches like "why does cupping leave marks?"

In a TCM session, cupping is rarely a stand-alone treatment. A practitioner will first take a full history—asking about sleep, digestion, stress, pain patterns, and more—and look at your tongue and pulse. These are the classic diagnostic methods of TCM.

Based on that assessment, they decide whether cupping is appropriate and where to place the cups. The marks themselves are read as diagnostic clues: a dark purple mark might be interpreted as "Blood stasis" (血瘀, xuè yū), while a pale mark that fades quickly could suggest "Qi deficiency" (气虚, qì xū). A practitioner might combine cupping with acupuncture needles, herbal formulas, or dietary advice.

It's important to note that cupping is traditionally used for musculoskeletal pain, respiratory conditions like coughs and colds, and general fatigue—but it is not a treatment for diagnosed diseases. Some people report feeling relaxed or experiencing less muscle tension afterward; others notice no difference. Research on cupping is ongoing, and while some studies suggest potential benefits for pain, the evidence base is still developing.

Myth: The darker the mark, the more "toxins" were released.

Fact: The mark is a bruise caused by broken capillaries under suction. Its color relates to how much blood was drawn to the surface and individual factors like skin tone and circulation—not a measurable "toxin" level.

Myth: Cupping is painful.

Fact: Most people describe the sensation as a tight pulling or a deep warmth, not sharp pain. The cups are left in place for a few minutes, and the marks themselves are typically tender but not agonizing.

Myth: Cupping is a proven cure for any specific disease.

Fact: Cupping is a complementary therapy. It is not a cure for cancer, diabetes, infections, or any other diagnosed condition, and it should never replace medical treatment prescribed by your doctor.

TCM doesn't treat everyone the same way. A person with a "Damp-Heat" constitution (湿热, shī rè) might benefit from different cupping points than someone with a "Qi Deficiency" constitution (气虚, qì xū). The marks, the response to treatment, and even the recommended frequency can all vary based on your individual constitution—one of the 9 TCM body constitution types recognised in TCM. Understanding your type can help you have a more informed conversation with a practitioner.

Curious about where you fit in the TCM picture? A good starting point is to take the free TCM Body Type Quiz, which gives you a complete, personalised constitution report—so you can walk into any cupping or acupuncture session with a clearer sense of your own patterns.

How long do cupping marks last?

Most cupping marks fade within 3 to 10 days, depending on the intensity of the suction and your individual healing rate. They may look like round bruises in various shades of pink, red, or purple.

Is cupping safe?

When performed by a trained practitioner using clean equipment, cupping is generally considered safe for most adults. Mild side effects like soreness or temporary bruising are common. People with certain skin conditions, bleeding disorders, or who are pregnant should consult a licensed healthcare provider first.

What does it mean if the marks are very dark?

In TCM theory, dark marks are often interpreted as signs of Blood stasis or coldness in the area. However, from a Western medical perspective, darker marks simply mean more superficial capillaries were drawn to the surface. It is not a diagnostic test for any disease.

Can cupping help with weight loss or cellulite?

There is no strong scientific evidence that cupping causes weight loss or permanently reduces cellulite. Some people report temporary improvements in skin appearance due to increased local circulation, but this is not a guaranteed or proven effect.

Does cupping hurt?

The suction can feel intense, but most people describe it as a deep pulling sensation rather than pain. The marks may be tender to the touch for a day or two afterward, similar to a bruise.

Discover Your Body Type — Free Quiz

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References & Citations

1. World Health Organization. WHO Traditional Medicine Strategy 2014-2023. WHO, 2013. [www.who.int]
2. National Center for Complementary and Integrative Health. Cupping. NCCIH, 2021. [www.nccih.nih.gov]
3. Chen, L., et al. The efficacy of cupping therapy in pain management: a systematic review and meta-analysis. BMJ Open, 2018. [bmjopen.bmj.com]
4. State Administration for Market Regulation. GB/T 39616-2020: Traditional Chinese Medicine – Cupping Therapy. Standards Press of China, 2020.
5. Zheng, G., et al. The Mawangdui Silk Texts and the Origins of Cupping. Journal of Chinese Medical History, 2015.